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Verification Tools

Free tools to verify vehicles, check recalls, calculate specifications, and make informed decisions before you buy.

Vehicle Verification

AutoCheck

Comprehensive used vehicle verification

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VIN Decoder

Decode any VIN to get vehicle specifications

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Recall Checker

Check for open recalls by make, model, and year

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Used Car Inspection Checklist

Printable checklist for used car inspection

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Diagnostics

OBD Code Lookup

Look up check engine light codes

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Tire & Wheel

Tire Size Calculator

Calculate tire dimensions

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Tire Size Comparison

Compare two tire sizes side by side

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Speedometer Error Calculator

Calculate speedometer error with new tires

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Wheel Offset Calculator

Calculate wheel fitment changes

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Towing & Capacity

Towing Capacity Calculator

Calculate towing and payload limits

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Electronics

USB-C Power Calculator

Check device, charger, and cable wattage limits

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Charger Compatibility Checker

Check charger wattage, connector type, USB-C PD, and cable limits

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Battery Recalls

Check recalls for batteries and battery-powered products

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Appliances

Energy Cost Calculator

Estimate appliance energy cost by wattage and usage

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Refrigerator Energy Cost

Calculate refrigerator annual operating cost

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AC BTU Calculator

Find the right air conditioner size for any room

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Food Safety

FDA Recall Search

Search live FDA food recall alerts by product

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USDA Recall Search

Check USDA recalls for meat and poultry

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Allergen Checker

Check ingredient text for common food allergens

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Emergency Gear Calculators

Atlas
🧊 Emergency Tool Refrigerator Power Outage Runtime — How Long Before Food Spoils Calculator · Updated May 2026 🔧 OBD Diagnostic Check Engine Light — Decision Tree & Next Steps Symptom Guide · Updated May 2026 ⚡ OBD Diagnostic Engine Misfire — Causes & Diagnostic Guide Symptom Guide · Updated May 2026

All Atlas emergency tools use official data sources · Open OBD Code Lookup